Sign up for a Uplay account. You can now earn Uplay Points by completing the following tasks.

Reach rank "5".
Find a Hidden Squirrel.
Play and rate ten tracks.
Complete a track without making any mistakes or using the "Reset" button.

After collecting enough points, you can unlock the following items.

$10,000 in-game money: 10 Uplay Points
Clown helmet: 20 Uplay Points
Squirrel helmet: 30 Uplay Points
Hue Customization kit: 40 Uplay Points
Trials Fusion wallpaper: 10 Uplay Points, PC exclusive.